認知機能は、分離された内在性ネットワークアーキテクチャに依存する
bioRxiv : the preprint server for biology
|February 23, 2026
まとめ
認知機能は、専門的な機能のための分離された脳ネットワークアーキテクチャに依存している。しかし、情動的プロセスは、その維持のために、より分散した脳ネットワークメカニズムを利用する可能性がある。
科学分野:
- 神経科学
- 認知科学
- 心理学
背景:
- 安静時ネットワーク(RSN)は、オフラインの認知サポートに不可欠である。
- ネットワークの分離と統合は、専門的で柔軟な行動に不可欠である。
- 内在性RSN組織と個々の行動の違いを結びつける研究は限られている。
研究 の 目的:
- 内在性RSN組織と行動維持との関連を調査する。
- ネットワークの分離と統合が、認知的および情動的特性とどのように関連するかを探る。
主な方法:
- Human Connectome Projectの安静時機能的磁気共鳴画像法(fMRI)データを利用した。
- 認知、情動、性格全体にわたる行動の機能的接続性予測を実行した。
- ネットワークの分離と統合を評価するために、33-RSNアトラスであるGINNAを使用した。
主要な成果:
- 行動接続性は、認知、ポジティブ情動、ネガティブ情動の3つの潜在的次元に組織化された。
- 認知機能は、グローバルネットワークの分離と統合の低下に関連していたが、情動はそうではなかった。
- 認知機能は、高次のRSNの分離と低次の視覚ネットワークの統合を伴った。
結論:
- 認知機能は、モジュール特化を促進する分離された内在性脳アーキテクチャによってサポートされている。
- 情動的プロセスは、内在性脳ネットワークを横断する分散メカニズムに依存しているように見える。
- 発見は、認知機能をサポートする上で分離された脳アーキテクチャの役割を強化する。
関連する概念動画
Organization of the Brain
2.8K
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
2.8K
Storage
430
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
430
Cerebral Hemispheres
2.6K
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
2.6K
Introduction to Cognitive Psychology
2.8K
Cognitive psychology is the field of psychology dedicated to examining how people think. It attempts to explain how and why we think the way we do by studying the interactions among human thinking, emotion, creativity, language, and problem-solving, as well as other cognitive processes. Cognitive psychology studies how information is processed and manipulated in remembering, thinking, and knowing.
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
2.8K
Neural Circuits
3.0K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
3.0K
Somatosensory, Motor, and Association Cortex
2.9K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
2.9K


